AirHint found the following cheapest return flights from London (LON) to Seoul (ICN) in July 2026 (see full year).

Return flights

01 Jul - 09 Jul	Turkish Airlines
02 Jul - 08 Jul	Turkish Airlines
01 Jul - 14 Jul	Turkish Airlines
05 Jul - 11 Jul	Finnair
05 Jul - 16 Jul	Finnair
12 Jul - 27 Jul	Lufthansa
29 Jul - 05 Aug	Norwegian Air Sweden AOC
05 Jul - 12 Jul	Finnair
08 Jul - 19 Jul	Finnair
21 Jul - 25 Jul	Finnair
16 Jul - 23 Jul	Lufthansa
24 Jul - 22 Aug	Air Astana
22 Jul - 22 Aug	Scandinavian Airlines
17 Jul - 24 Aug	Finnair
18 Jul - 24 Aug	Finnair
20 Jul - 02 Aug	Finnair
02 Jul - 20 Aug	Lufthansa
22 Jul - 05 Aug	Finnair
24 Jul - 23 Aug	Finnair
18 Jul - 23 Aug	Finnair

Also check the deals for one-way flights from London to Seoul in July.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from London to Seoul in July from $881

Return flights